5431381 has 16 divisors (see below), whose sum is σ = 6220800. Its totient is φ = 4711168.

The previous prime is 5431369. The next prime is 5431399. The reversal of 5431381 is 1831345.

It is a cyclic number.

It is not a de Polignac number, because 5431381 - 2¹⁹ = 4907093 is a prime.

It is a super-2 number, since 2×5431381² = 58999799134322, which contains 22 as substring.

It is a Duffinian number.

5431381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5431331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11100 + ... + 11578.

It is an arithmetic number, because the mean of its divisors is an integer number (388800).

Almost surely, 2^5431381 is an apocalyptic number.

It is an amenable number.

5431381 is a deficient number, since it is larger than the sum of its proper divisors (789419).

5431381 is a wasteful number, since it uses less digits than its factorization.

5431381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its digits is 1440, while the sum is 25.

The square root of 5431381 is about 2330.5323426205. The cubic root of 5431381 is about 175.7802547624.

The spelling of 5431381 in words is "five million, four hundred thirty-one thousand, three hundred eighty-one".